What are gender differences in lower limb muscle activity during jump–landing tasks? A systematic review and meta-analysis

Table 1 Quality evaluation

References	Reporting					External validity	Internal validity (bias)		Power
References	Q 1	Q 2	Q 3	Q 4	Q 6	Q 11	Q 18	Q 20	Q 27	Score
Rozzi et al. [34]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Garrison et al. [40]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Zazulak et al. [42]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Carcia and Martin [39]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Nagano et al. [41]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Ebben et al. [32]	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	8
de Britto et al. [31]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7
Ogasawara et al. [33]	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	7

Abbreviations: Q Question
Q 1: Is the hypothesis/aim/objective of the study clearly described?; Q 2: Are the main outcomes to be measured clearly described in the introduction or methods?; Q 3: Are the characteristics of the subjects included in the study clearly described?; Q 4: Are the task procedures clearly described?; Q 6: Are the main findings of the study clearly described?; Q 11: Were the subjects asked to participate in the study representative of the entire population from which they were recruited?; Q 18: Were the statistical tests used to assess the main outcomes appropriate?; Q 20: Were the main outcome measures used accurate (valid and reliable)?; Q 27: Did the study have significant power to detect a clinically important effect where the probability value for a difference being due to chance is less than 5%?

ISSN: 2052-1847